CRIS: assignment/is equal confusion

Somehow, the assignments of rw->lock got written as comparisons.
The effect probably was that the read-write spinlocks never locked.
However, since the locks are only used in CONFIG_SMP and SMP CRIS is
experimental, it has never been identified as a problem.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/arch/cris/include/arch-v32/arch/spinlock.h b/arch/cris/include/arch-v32/arch/spinlock.h
index 129756b96661..367a53ea10c5 100644
--- a/arch/cris/include/arch-v32/arch/spinlock.h
+++ b/arch/cris/include/arch-v32/arch/spinlock.h
@@ -78,7 +78,7 @@ static  inline void __raw_write_lock(raw_rwlock_t *rw)
 {
         __raw_spin_lock(&rw->slock);
         while (rw->lock != RW_LOCK_BIAS);
-        rw->lock == 0;
+        rw->lock = 0;
         __raw_spin_unlock(&rw->slock);
 }
 
@@ -93,7 +93,7 @@ static  inline void __raw_write_unlock(raw_rwlock_t *rw)
 {
         __raw_spin_lock(&rw->slock);
         while (rw->lock != RW_LOCK_BIAS);
-        rw->lock == RW_LOCK_BIAS;
+        rw->lock = RW_LOCK_BIAS;
         __raw_spin_unlock(&rw->slock);
 }
 
@@ -114,7 +114,7 @@ static  inline int __raw_write_trylock(raw_rwlock_t *rw)
         int ret = 0;
         __raw_spin_lock(&rw->slock);
         if (rw->lock == RW_LOCK_BIAS) {
-                rw->lock == 0;
+                rw->lock = 0;
                 ret = 1;
         }
         __raw_spin_unlock(&rw->slock);